Method for preparing cerium carbonate
    2.
    发明授权
    Method for preparing cerium carbonate 有权
    碳酸铈的制备方法

    公开(公告)号:US08795623B2

    公开(公告)日:2014-08-05

    申请号:US13016311

    申请日:2011-01-28

    IPC分类号: C01F17/00

    摘要: Disclosed is a method for preparing cerium carbonate that can prepare cerium carbonate having uniform crystal structure, shape and size with high productivity. The method for preparing cerium carbonate comprises: continuously introducing a reaction solution comprising cerium precursor and urea in a tubular reactor including an inlet, an outlet, and one or more reaction tubes through the inlet; reacting the cerium precursor with urea at an elevated temperature in the reaction tube; and, continuously discharging cerium carbonate formed by the reaction of the cerium precursor and urea to the outlet.

    摘要翻译: 公开了一种制备能够以高生产率制备具有均匀晶体结构,形状和尺寸的碳酸铈的碳酸铈的方法。 制备碳酸铈的方法包括:在包括入口,出口和一个或多个反应管的管式反应器中连续引入包含铈前体和尿素的反应溶液通过入口; 在反应管中在升高的温度下使铈前体与脲反应; 并且通过铈前体和尿素的反应形成的碳酸铈连续排出到出口。

    Method for preparing cerium carbonate and cerium oxide
    3.
    发明授权
    Method for preparing cerium carbonate and cerium oxide 有权
    制备碳酸铈和氧化铈的方法

    公开(公告)号:US08637153B2

    公开(公告)日:2014-01-28

    申请号:US13021464

    申请日:2011-02-04

    IPC分类号: B32B5/16

    摘要: Disclosed is a method for preparing cerium carbonate that can improve yield or productivity of cerium carbonate and enables preparation of cerium carbonate having uniform diameter, cerium carbonate, and a method for preparing cerium oxide.The method for preparing cerium carbonate comprises mixing the cerium precursor with urea; and, elevating the temperature of the mixture to 50° C. or more in the absence of a separate reaction medium to react the cerium precursor with urea in the presence of a polymer dispersant.

    摘要翻译: 公开了一种制备可以提高碳酸铈的产率或生产率并能够制备直径均匀的碳酸铈,碳酸铈和制备氧化铈的方法。 制备碳酸铈的方法包括将铈前体与尿素混合; 并且在没有单独的反应介质的情况下将混合物的温度提高到50℃以上,以在聚合物分散剂存在下使铈前体与脲反应。

    AQUEOUS SLURRY COMPOSITION FOR CHEMICAL MECHANICAL POLISHING AND CHEMICAL MECHANICAL POLISHING METHOD
    4.
    发明申请
    AQUEOUS SLURRY COMPOSITION FOR CHEMICAL MECHANICAL POLISHING AND CHEMICAL MECHANICAL POLISHING METHOD 审中-公开
    化学机械抛光和化学机械抛光方法的水性浆料组合物

    公开(公告)号:US20100184291A1

    公开(公告)日:2010-07-22

    申请号:US12594798

    申请日:2009-02-26

    摘要: The present invention relates to an aqueous slurry composition for chemical mechanical polishing that can show good polishing rate to the target layer, and yet has a high polishing selectivity and can maintain superior surface condition of the target layer after polishing, and a chemical mechanical polishing method.The aqueous slurry composition for chemical mechanical polishing (CMP) includes abrasives; an oxidant; a complexing agent; and a polymeric additive including at least one selected from the group consisting of a polypropyleneoxide, a propyleneoxide-ethyleneoxide copolymer, and a compound represented by Chemical Formula 1.

    摘要翻译: 本发明涉及一种用于化学机械抛光的水性浆料组合物,其可以对目标层显示出良好的抛光速率,并且具有高的抛光选择性并且可以在抛光后保持目标层的优异的表面状态,以及化学机械抛光方法 。 用于化学机械抛光(CMP)的含水浆料组合物包括研磨剂; 氧化剂 络合剂 以及包含选自由聚环氧丙烷,环氧丙烷 - 环氧乙烷共聚物和化学式1表示的化合物组成的组中的至少一种的聚合物添加剂。

    Method for preparing cerium carbonate
    9.
    发明授权
    Method for preparing cerium carbonate 有权
    碳酸铈的制备方法

    公开(公告)号:US08216327B2

    公开(公告)日:2012-07-10

    申请号:US12933576

    申请日:2009-03-18

    IPC分类号: B24D3/02 C09C1/68 C01F17/00

    摘要: The present invention relates to a method for preparing cerium carbonate which enables preparation of hexagonal cerium carbonate by a simplified process, a cerium carbonate powder prepared thereby, and a method for preparing a cerium oxide powder using the same.The method for preparing cerium carbonate comprises the step of contact-reacting orthorhombic cerium carbonate with a primary alcohol aqueous solution comprising water and primary alcohol at a weight ratio of 1:0.1 or more at a temperature of 160° C. or more to form hexagonal cerium carbonate.

    摘要翻译: 本发明涉及一种制备碳酸铈的方法,其可以通过简化的方法制备六方碳酸铈,由此制备的碳酸铈粉末,以及使用其制备二氧化铈粉末的方法。 制备碳酸铈的方法包括在160℃或更高的温度下使正交碳酸铈与包含水和伯醇的伯醇水溶液以1:0.1或更高的重量比接触反应以形成六方晶系的步骤 碳酸铈。

    METHOD FOR PREPARING CERIUM CARBONATE
    10.
    发明申请
    METHOD FOR PREPARING CERIUM CARBONATE 有权
    制备碳酸钙的方法

    公开(公告)号:US20110107680A1

    公开(公告)日:2011-05-12

    申请号:US12933576

    申请日:2009-03-18

    IPC分类号: C09G1/02 C09K3/14 C01F17/00

    摘要: The present invention relates to a method for preparing cerium carbonate which enables preparation of hexagonal cerium carbonate by a simplified process, a cerium carbonate powder prepared thereby, and a method for preparing a cerium oxide powder using the same.The method for preparing cerium carbonate comprises the step of contact-reacting orthorhombic cerium carbonate with a primary alcohol aqueous solution comprising water and primary alcohol at a weight ratio of 1:0.1 or more at a temperature of 160° C. or more to form hexagonal cerium carbonate.

    摘要翻译: 本发明涉及一种制备碳酸铈的方法,其可以通过简化的方法制备六方碳酸铈,由此制备的碳酸铈粉末,以及使用其制备二氧化铈粉末的方法。 制备碳酸铈的方法包括在160℃或更高的温度下使正交碳酸铈与包含水和伯醇的伯醇水溶液以1:0.1或更高的重量比接触反应以形成六方晶系的步骤 碳酸铈。